Susan was getting excited.
Nathan's expression is calm as a lake even now.
She wanted to see how much more till he is forced to get serious.
She decided to get a little more serious herself.
Susan started using the strength of Lvl.14.
Another sword appeared in her hand.
Vroom-
Air stirred, and white flames covers her sword.
She swings her sword downward. A large arc of white flames shoots out and flies toward Nathan.
Phzzzt-
-Bam!
A sword appeared beneath Nathan, and he jumps in another direction.
Slash-
Slash-
Slash-
Susan continues, sending out arcs of white flames.
But Nathan continued to dodge in the same manner. No, it wasn't the same.
-Bam!
–Bam! –Bam!
Nathan was getting faster.
The speed at which he was able to burst a layer of ether under his feet was increasing.
He was mastering the technique during the fight itself!